Changes to Get all agents

the endpoint scheme security bearerAuth was added to the API

the items/created_at response's property type changed from integer to number for status 200

the items/deactivated_at response's property type changed from integer to number for status 200

the items/last_checkin response's property type changed from integer to number for status 200

the items/updated_at response's property type changed from integer to number for status 200